Corn pad



April 1937- w. M SCHOLL 2,078,283

com: PAD

Filed A ril 17, 1955 I/V/LL/AM M SCHOLL Patented Apr. 27, 1937 UNITED s'rs'rss PATENT orslcs CORN PAD William M. Scholl, Chicago, Ill.

Application April 17, 1933, Serial No. 666,462

2 Claims.

This invention relates to a corn pad and a novel method of making same.

At present it is the practice in the manufacture of laminated fabric layers for use in corn or calli treatment pads to secure the laminations together by means of an adhesive material disposed between the laminations. This laminated structure and the method of making the same has not proven entirely satisfactory for the reason that when the same is disposed in a corn pad there is a tendency for the adhesive material to seep or exude from between the laminations thereby giving the calli pad an unsightly and disagreeable appearance as well as causing annoyance to the wearer due to the tendency of the pad to stick to the garment or hose of the wearer.

I propose to overcome this difiiculty by causing the adhesive material to become such a part of the laminations that any tendency for the adhesive material to escape from between the laminations of the pad when the pad is in use is substantially obviated.

An object therefore of this invention is to provide an improved corn pad and method of making the same whereby the above noted undesirable condition is substantially obviated...

Another disadvantage of pads for the treatment of calli and the like, as heretofore made, is that the outer fabric layer due to its porosity permits moisture and other ingredients of the adhesive or chemical preparation used in the pad to penetrate through such outer layer and present an unsightly and disagreeable appearance as well as cause annoyance to the wearer due to the tendency of the pad to stick to the wearer's hose.

It is hence also an object of this invention to provide a corn pad wherein the outer layer is substantially impervious to moisture or other ingredients of the adhesive material or chemical of the pad as well as to any matter which may accumulate in the treatment of the calli.

In accordance with the general features of this invention I accomplish the first of the abovenoted objects by vulcanizing the laminations of fabric, thus binding them, as well as substantially preventing any seepage of the adhesive material from between the laminations when the pad comprising such laminations is in use.

Also in accord with the general features of this invention I overcome the second of the above discussed disadvantages by providing the exterior layer of the pad for the treatment of calli and the like with a thin coating of cellulose ester such as pyroxylin, this coating not only preventing penetration of matter and medicament from the pad but also being flexible so that the pad may be readily flexed to conform with the contour of the surface to which it is applied.

Other objects and features of this invention will more fully appear from the following detail description taken in connection with the accompanying drawing which illustrates an embodiment of the invention and in Which- Figure l is a plan view of a calli treatment pad embodying the features of this invention and which pad is illustrated as being applied to a crinoline or gauze base;

Figure 2 is an enlarged cross sectional view taken on the line IIII of Figure 1 looking in the direction indicated by the arrow;

Figure 3 is an enlarged cross sectional view of a laminated layer of fabric illustrating how the laminations may be vulcanized together with the cement between them;

Figure l is a fragmentary view illustrating the arrangement of the laminated layer shown in Figure 3 and also showing how this laminated layer is secured to the crinoline base; and

Figure 5 is a cross sectional view taken on the line VV of Figure 2 showing the coating on the top layer of the pad.

The reference character 9 designates generally a pad for the treatment of calli and the like and which pad is illustrated as being applied to the carrying and protective base which may be the usual gauze or crinoline base l0. This pad may be made of any desired shape and includes a laminated wall of fabric or other materials such as W001 or rubber l2 which defines a central opening 8, for accommodating the corn or the like being treated. The wall l2 has an outer covering or layer H which extends clear across the top of the pad.

The laminated wall [2 in accordance with the features of this invention is preferably made up of laminations l3 and I4 vulcanized together by the cement disposed between them. In Figure 3 it will be observed that the laminations I3 and M are brought together with a vulcanizing adhesive binding material [5 between them.

The rubber vulcanizing material I5 is next vul canized by any suitable process of vulcanization so as to cause the laminations l3 and M to be firmly bound together in as many layers as may be required, giving the appearance or effect of one piece of fabric. Also in the fabrication of this laminated layer l2 either a heat cure or an air cure may be used. As pointed out hereinabove, this laminated layer I2 and method of making the same is particularly desirable for the reason that it prevents adhesive material which heretofore has been used in laminated fabrics from seeping from between the laminations when the pad is in use.

The under side of the laminated layer or wall I2 is provided with the usual layer of adhesive l6 for enabling the pad to adhere to the part of the body to which it is applied. Numeral It] shows crinoline applied to an adhesive surface to protect the adhesive surface until ready for use. This lowermost adhesive coating [6 consists of a suitable plaster mass containing the proper medicinal ingredients and is applied to layer [2 by calender under heat.

It is to be understood that the pad of my invention may be attached to a base of cellophane, waxed paper, muslin, crinoline or any other suitable material that will protect the adhesive surface until the pad is used, and that accordingly, my invention is not to be limited to a pad mounted on crinoline as illustrated.

By my method I am able to build up layers of fabric or combinations of fabrics, with felt, sponge rubber, and other suitable materials as may be required to properly cushion the affected area.

As noted hereinabove the top of the wall I2 is covered by an outer layer II which as shown in Fig. 5 is composed of a piece of fabric having its outer side coated with a material for rendering the covering H impervious to the passage of matter therethrough. This coating may be in the form of a cellulose ester such, for example, as pyroxylin and is designated by the reference numeral ll. Also there is applied to the under side of the fabric layer ll an adhesive layer l8 which may include zinc oxide or may be otherwise medicated.

As noted hereinabove, I find that by providing the layer H with a coating of cellulose ester or other suitable covering for preventing the passage of matter therethrough I am unabled to prevent the adhesive and zinc oxide l8 from seeping through the fabric goingto make up the layer H as 'Well as prevent matter which may accumulate in the treatment of the calli from penetrating the outer covering H and thus discoloring the outer appearance of the pad.

The cellulose ester or pyroxylin or other coating does not interfere with the flexibility of the outer layer H so that the outer layer may be readily flexed along with the remaining structure of the pad in the application of the pad to the part being treated whereby the pad is enabled to readily conform with the contour of the surface to which it is applied. Furthermore, the outer layer H with its thin, flexible coating l8 may be centrally bowed downwardly as shown in Figure 2 to enable the coating i8 to'be brought. into cooperation with the calli being treated.

I claim as my invention:

1. A corn pad to carry a medicament and having a lower face and an upper face, means to resist seepage of medicament and body perspiration from one face to the other face of said pad when said pad is subjected topressure, heat and perspiration in use on the foot of a person, said means consisting of a plurality of layers of fabric made integral and resistant to moisture by a layer of a vulcanizing medium between said layers of fabric and vulcanized'to said layers of fabric, said layers being apertured to provide a pocket, and a fabric cover secured to said layers to provide a closure member for said pocket, said cover being coated on its outer face with a thin coating of a moisture-resistant cellulose ester.

2. As an article of manufacture, a medical pad of the character'described including a cushioning part built up of a plurality of layers of soft and flexible material of loose texture, a vulcanizing medium between adjacent layers and vulcanized to the material to firmly bond said layers and prevent seepage of said medium from between the layers, said pad having a recess in the cushioning part thereof for the reception of an ailiicted area, a waterproof cover over said cushioning part, and an adhesive undersurface on said cushioning part to attach the pad to the body of a user.

WILLIAM M. SCI-IOLL. 

